Abstract
The wide applications of acoustofluidic devices which have been studied in recent years, play a key role in cell manipulation and separation [1,2]. In such cases, the first part of acoustic force, which is called primary acoustic radiation force, has been widely investigated in last few decades
Highlights
The wide applications of acoustofluidic devices which have been studied in recent years, play a key role in cell manipulation and separation [1,2]
The small moving and big fixed particles are shown in the (Figures 6a & 6b). (Figure 7)shows the primary and secondary acoustic forces on moving polystyrene particle positioned at different distances from the fixed particle
The secondary acoustic radiation forces acting on solid particles outside of the pressure node has been investigated both numerically and experimentally
Summary
The wide applications of acoustofluidic devices which have been studied in recent years, play a key role in cell manipulation and separation [1,2] In such cases, the first part of acoustic force, which is called primary acoustic radiation force, has been widely investigated in last few decades [3,4,5]. When two or more suspended objects (particle or bubble) are subjected to an external acoustic field, the inter-particle force appears [9] This mutual force between particles which is known as secondary acoustic radiation force results in attraction or repulsion and under this condition and each particle is exposed to both the incident field (equal to the primary force) and the scattered field from the neighboring [10]. In 1906 a theoretical investigation of acoustic interaction force between a pair of air bubbles was derived by Bjerknes [9]
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